So I emailed santamonica and they said the weight was just iron so it shouldn't be an issue. I'm forever a skeptic, so while I know that gfo is kind of iron rust I have a hard time believing a rusty weight wouldnt cause any issues.
That's it for now, will update if the corals get better or worse in a week or more. T
Thanks for all the replies and help everyone.
That's it for now, will update if the corals get better or worse in a week or more. T
Thanks for all the replies and help everyone.